A 17-year-old Arlington mother intentionally concealed the body of her daughter by digging a grave with her boyfriend in Parker County last week after the little girl was beaten and stomped to death, according to an arrest warrant obtained by the Star-Telegram on Wednesday.

Also, Alexis Botello did not tell authorities what happened to her daughter, Tylea Moore, the affidavit stated.

Botello was arrested Tuesday night and remained in the Arlington Jail Wednesday on $125,000 bail.

Her boyfriend, Joshua Beard, 20, also was in the Arlington Jail facing a capital murder charge on $1 million bail. Beard is accused of beating and stomping Tylea to death Friday at the Arlington home where he lived with Botello. The couple then buried Tylea under a bridge near Springtown.

Botello led authorities to the grave during the weekend after Arlington police were alerted to the case.

Botello faces charges of tampering with or fabricating physical evidence and injury to a child/omission.

“I can’t go into details, but she failed to report what happened to her daughter,” Arlington police Lt. Christopher Cook said Wednesday.